/Engine/Plugins/MovieScene/MovieRenderPipeline/Source/MovieRenderPipelineCore/Public/MoviePipelineQueueEngineSubsystem.h
Using this function whileIsRendering()returns true will result in an exception being thrown and no attempt being made to create the job.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Movie Render Pipeline|Rendering") [UMoviePipelineExecutorJob](API\Plugins\MovieRenderPipelineCore\UMoviePipelineExecutorJob) * AllocateJob ( [ULevelSequence](API\Runtime\LevelSequence\ULevelSequence) * InSequence )